assertEquals(LlmMessage.ROLE_ASSISTANT, message.getRole());
        assertEquals("Assistant response", message.getContent());
    }

    @Test
    public void test_settersAndGetters() {
        final LlmMessage message = new LlmMessage();

        message.setRole("user");
        message.setContent("Test content");

        assertEquals("user", message.getRole());

        assertNull(response.getCompletionTokens());
        assertNull(response.getTotalTokens());
        assertNull(response.getModel());
    }

    @Test
    public void test_settersAndGetters() {
        final LlmChatResponse response = new LlmChatResponse();

        response.setContent("Response content");
        response.setFinishReason("stop");
        response.setPromptTokens(100);

        assertEquals("Hi there!", message.getContent());
        assertTrue(message.isAssistant());
        assertFalse(message.isUser());
    }

    @Test
    public void test_settersAndGetters() {
        final ChatMessage message = new ChatMessage();
        final LocalDateTime timestamp = LocalDateTime.of(2025, 1, 1, 12, 0, 0);
        final List<ChatSource> sources = new ArrayList<>();